M: (sound of alarm) Attention, please. Attention, please. There is an earthquake happening right now. Everyone, hide under your desk, stay on your knees, and hold onto your head with your arms and hands. Be careful. Things may drop from above. Keep quiet, and do not come out until your teachers tell you to.
Question: What does the man tell the students to do?
(A) To keep themselves safe.
(B) To help move their desks.
(C) To do exercises with their teachers.